Matrix Orbital GLK24064-25 Legacy - Manual (Page 14)

Figure 15: Keypad Interface Connector
2.4 Filesystem Lock Jumper
The File System Lock Jumper allows you to lock the filesystem on the GLK24064-25 so that no fonts or
bitmaps can be either written or deleted from the on board memory. This feature is useful in order to protect
data integrity of production units, if protection of other settings is required see Section 12.
To lock the file system, solder a zero ohm resistor or use a solder jumper on the Filesystem Lock Jumper
pictured in figure 16 below.
Figure 16: Filesystem Lock Jumper
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